What you must know about LED drivers
Constant current drive circuit When evaluating LED lamps, LED driving circuit is an important factor. Many simple drive power supplies…
What is the current-voltage characteristic of LED?
The current-voltage characteristic of an LED or ordinary diode can be decomposed into four regions (see Figure 1), two in…
What is LED material and its development?
In 1962, Holonyak and Bevacqua, who worked at GE in New York, USA, took the lead in producing visible light…
What are LEDs for Solar Lighting?
An LED is a polar device that emits light when applied with an appropriate amount of direct current. Generally, LEDs…
What are semiconductors and p-n junctions?
Materials can be divided into three types according to their conductivity. Some of these materials that conduct electricity well are…
What is the photometric and radiometric of led?
1. IrradianceIrradiance is a measure of radiation. It is used to measure the electromagnetic radiation energy per unit area. Its…
What is the current state of solar power and rural electrification?
Electricity production and distribution in rural areas of some developing countries is one of the main issues for the country…
Basic knowledge of photovoltaic systems
1. Standard stand-alone PV systemA standard stand-alone PV system consists of solar panels, batteries, charge controllers and inverters. Solar panels…
Basic knowledge of solar panels
1. From solar cells to solar panelsPhotovoltaic solar panels or modules are formed by connecting multiple solar cells in series…
What is an organic solar cell
Organic solar cell are made of thin films of carbon-based materials with a thickness of 10 to 100 nm. These…